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Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 2407138026

Certificate GIA 2407138026

Diamond specifications and retailer prices

From £1,701 GBP
$2,283 USD
As of November 2, 2026
Save £1,890 GBP (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,592 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2407138026. Listed at 21 retailers as of November 2, 2026, with prices from £1,701 to £3,592, a £1,890 spread on the same certified stone. MOH London lists it at £3,592. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2407138026
Dimensions6.24 × 5.72 × 3.83 mm
L/W Ratio1.09
Top View
6.24 mm5.72 mm1.05 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2407138026
Side View
Table 72.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 67.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £3,592 GBP|Low: £1,497 GBP|High: £3,635 GBP|Avg: £2,261 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9£1,701 GBP
Retailer 5£1,714 GBP
Retailer 6£1,796 GBP
Retailer 10£1,923 GBP
Retailer 8£2,113 GBP
Retailer 3£2,296 GBP
Retailer 7£2,415 GBP
Retailer 2£2,518 GBP
Retailer 4£2,640 GBP
MOH London£3,592 GBP

44 data points across 10 retailers

21 retailers£1,701 GBP to £3,592 GBP

B
Cheapest Retailer
-
£1,701 GBP
$2,283 USD
Retailer 2
-
£1,714 GBP
$2,300 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
£1,742 GBP
$2,338 USD
View
B
Retailer 4
-
£1,749 GBP
$2,347 USD
View
B
Retailer 5
-
£1,796 GBP
$2,410 USD
View
Final sale: no returns
B
Retailer 6
-
£1,806 GBP
A$3,729 AUD
View
B
Retailer 7
-
£1,836 GBP
$2,464 USD
View
B
Retailer 8
-
£1,923 GBP
$2,580 USD
View
B
Retailer 9
-
£2,104 GBP
$2,824 USD
View
B
Retailer 10
-
£2,110 GBP
$2,832 USD
View
B
Retailer 11
-
£2,113 GBP
$2,835 USD
View
B
Retailer 12
-
£2,127 GBP
CA$3,965 CAD
View
B
Retailer 13
-
£2,228 GBP
$2,990 USD
View
B
Retailer 14
-
£2,228 GBP
$2,990 USD
View
B
Retailer 15
-
£2,296 GBP
View
B
Retailer 16
-
£2,303 GBP
$3,090 USD
View
Retailer 17
-
£2,415 GBP
A$4,986 AUD
View
Price last confirmed 29 days ago
Retailer 18
-
£2,494 GBP
$3,347 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
£2,518 GBP
€3,218 EUR
View
B
Retailer 20
-
£2,640 GBP
ZAR 57,232 ZAR
View
Most Expensive
C
MOH London
9B429F84A · Nov 2
£3,592 GBP
View
20 more retailers have this diamond
Prices start from £1,701 GBPSave up to £1,890 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.05ct Cushion
£1,701 GBP